baber/WOPTO huggingface dataset:
Patent GB-548317-A (GB)
Title: Improvements in length measuring instruments
IPC: G01B3/16
Filed: 1941-04-19
Abstract: 548,317. Drawing instruments. CRAWLEY, J. A. April 19, 1941, No. 5079. [Class 97 (iii)] The points E of dividers used for measuring lengths of test pieces are bent at right-angles to the plane of the legs so that when they are sharpened the effective lengths of the legs are unchanged. A dial gauge C is pivoted to one leg and its plunger part F pivoted to the other leg, and these parts may be removable to enable them to fit another similar instrument.
Patent GB-847251-A (GB)
Title: Improvements in or relating to variable line spacing clutch mechanisms
IPC: B41J11/24
Filed: 1957-02-15
Abstract: 847,251. Friction clutches. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 15, 1957 [Feb. 20, 1956], No. 5182/57. Class 80 (2). [Also in Group XVI] A variable line-spacing clutch, for driving the platen 2 of a typewriter, adding, accounting or other office machine, comprises a resilient split-ring operated by a cam pivotallymounted on the inner clutch member which either expands the ring into clutching engagement or allows it to contract out of engagement with an outer clutch member. The platen 2 is carried by a hub 8 secured to a cap member 10 which has a reduced diameter 23 freely encircled by a split-ring 26 and a ratchetwheel 3. A tubular member 16, fixed to the cap member 10, has a knob 18 secured thereto by means of a sleeve 17, for manual operation of the platen. A cam 25 acting on the ends of the split-ring 26, has a pivot member 24 with rectangular portions fitting rectangular openings in a lever 31 which extends through bores in the member 10 and the hub 8. Fixed to the cap 10 is a bracket 33 which also extends through the hole in the member 8 and carries a pulley 35 at its outer end. A chain 36, connected to the free end of the lever 31, extends over the pulley 35 and a spool-shaped centre portion 37 of the pivot member 24, and is connected to an axially-slidable button 20 in the knob 18, which is urged to the left by a spring 38 to tension the chain and engage the split-ring 26 with the inner surface of the ratchet-wheel 3 through the lever 31 and the cam 25. Pressure on the button 20 removes the tension on the chain and permits the split-ring 26 to contract free of the ratchetwheel.
Patent GB-506558-A (GB)
Title: Improvements relating to balancing mechanism of sliding windows and other panels
IPC: E05F11/42
Filed: 1938-02-19
Abstract: 506,558. Regulating and balancing mechanism for sliding windows. SLEIGH, H. L., CHESTON, A. S., and OLDHAM, F. A. M. Feb. 19, 1938, No. 5232. [Class 20 (iii)] Relates to balancing mechanism for sliding windows, particularly vehicle windows, of the kind in which a balancing spring 22 acts upon a toothed member 19 which meshes with a further toothed member 13 connected to a control arm or lever 5. According to the invention, the toothed peripheries of the members 13, 19, are so contained as to cause the balancing force exerted by the spring on the window to remain substantially constant when the window is raised and lowered. The control arm shown is fitted with a roller 4 which slides in a guide 3 secured to the window panel 1, and is mounted to pivot on a spindle journalled in a fixed bracket 7. The spindle has a serrated portion 9, Fig. 6, which engages in a serrated aperture of a plate 11 secured to-lugs 12 on the toothed gear member 13. The other gear member 19 is rotatably mounted on a boss 20 projecting from the bracket 7, and is fitted with a screw 27 which anchors one end of the spring 22. The inner end of the spring is attached to a pin 21 journalled in the boss 20 and carrying an adjustably mounted plate which serves to control the initial tension of the spring. The spring is so mounted that its tension increases when the window is lowered, and in order to compensate for the varying tension of the spring and for the varying leverage of the control arm, the toothed members 13, 19, are shaped as shown to vary the balancing effect of the spring. Thus, when the arm is substantially horizontal the sections 13a, 19a, concentric with their pivots, are in mesh, and when the window is lowered from this position the section 19b of gradually increasing radius meshes with the section 13b of gradually diminishing radius. If desired, the sections 13c, 19c of the gears may be so shaped that a definite lifting action is given to the window as it approaches its closed position. To prevent any movement of the window due to vibration, a spring- controlled toothed member 30 is mounted between the plate 11 and member 13 and normally engages with a toothed rack 29 on the bracket 7. The member 30 has an aperture 32 engaged by a double cam 33 on the spindle of the operating handle. Release of the engaging teeth is thereby effected when the handle is turned, the member 30 being lifted by the cams until its shoulders 34 engage the lugs 12 ; continued movement of the handle rotates the gears to operate the window. In a modification, the arm 5 is of telescopic construction and is pivotally mounted at a fixed point to the lower edge of the window.
Patent GB-190947-A (GB)
Title: An improved combination tool for glaziers
IPC: B23Q13/00
Filed: 1922-02-23
Abstract: 190,947. Fortnam, G. D. Feb. 23,1922. Putty knives; scrapers.-A glazier's corribination tool consists of a metal stamping 1 formed at one end as a putty knife 2 with curved edges and at the other end as a hack knife 5 with a sharpened lower edge 6 terminating in a point 8. A glass cutter 10 formed of a plurality of hardened steel cutting wheels 12 is carried by arms 9 pivoted at 14 to the shank 1. To protect the hands of the user, a rubber sheath 16 is slipped over the end of the tool not in use.
Patent GB-540642-A (GB)
Title: Flameproof and fire-retarding material for wood
IPC: B27K3/32
Filed: 1940-03-23
Abstract: 540,642. Flame-proofing coating compositions. STRAUSZ, H. J. March 23, 1940, No. 5347. [Class 95] A flame-proof, fire-retarding coating composition consists, apart from any water present, of a preponderating proportion of calcium sulphate in the original hydrated form in which it is precipitated, together with colloidal silica, colloidal alumina and boric acid, which react with the calcium sulphate to produce a glazelike substance under the action of heat. Silicagel may be used as the source of colloidal silica, and aluminium hydroxide as the source of colloidal alumina, or Bentonite may be used as the source of both. Flame-proof salts and inorganic or organic binders may be added, and the composition may be mixed with a washable paste distemper, e.g. one containing casein, glue or saponified oils or fats. In an example, freshly precipitated calcium sulphate is mixed with Bentonite, water, ammonium sulphate, diammonium phosphate, borax and boric acid, and then with a distemper composed of casein, slaked lime, lithopone and water.
Patent GB-391286-A (GB)
Title: Improvements relating to the temperature control of reheated steam in steam generating plant
IPC: F01K7/22
Filed: 1932-02-23
Abstract: 391,286. Steam turbines &c. STUBBS, A., 390, Wilbraham Road, Chorlton-cum- Hardy. Feb. 23, 1932, No. 5437. [Class 110 (iii).] In a steam plant .in which the steam is reheated between stages of use, such as a plant compris ing high and low pressure turbines 12 17, the reheating is effected in two stages in flue-gas superheaters 13, 16 between which is arranged a steam cooler 15. The .amount of interstage superheat is controlled by varying the effect of the cooler. Steam from the drum 5 of the boiler 1 is passed through two superheaters 6, 7 and an interposed cooler 8 to the high pressure turbine 12, the cooler enabling the primary superheat to be controlled. The coolers 8, 15 consist of evaporators, and they may be regulated manually or automatically by altering the height of feed-water in them or by altering the rate of feed. The steam generated in the evaporators may be passed to the steam drum 5 through a throttle valve by which the water levels can be controlled, or the water spaces of the evaporators may be connected to the water space of the drum, the connection being controlled by a valve. A controlled byepass may be arranged across the steam tubes in the evaporator' 15. The steam generated in one or more of the evaporators may be introduced into the main steam - system, for example, at the exhaust point of the high pressure stage. In the first reheating element the direction of flow of steam is preferably counter-current to that of the flue gases.
Patent GB-599737-A (GB)
Title: Improvements in wheel chocks
IPC: B64F1/16
Filed: 1945-03-05
Abstract: 599,737. Wheel chocks. SHELTON, T. E. March 5, 1945, No. 5437. [Class 103 (i)] A wheel chock particularly applicable for aircraft comprises a front portion 1 linked to a smaller rear portion 2, the whole being of general wedge form. The part 2 is pivoted at 4 to bars 3 extending from the part 1 on both sides, and is also connected to the part 1 by short pivoted links 5. The two parts are pressed apart by springs 16. When the bases 8, 9 of the parts 1, 2 are coplanar, the inclined face 7 is at a steeper angle than the face 10. When a wheel exerts pressure on the part 2 the edge 11 is pressed into the ground, and further pressure by the wheel tyre brings the faces 7, 10 into the same plane and forces the edges 11, 12 downwardly.
Patent GB-740381-A (GB)
Title: Improvements in the manufacture of highly polymeric polymethylene terephthalates
Inventor: FLETCHER NORMAN
IPC: C08G63/183
Filed: 1953-02-27
Abstract: Highly polymeric polymethylene terephthalates are made by polycondensing a bis-(hydroxyalkyl) terephthalate in presence of a catalyst which is a compound of antimony soluble in the reaction mixture.  When the first step in the process is an ester-interchange reaction, an ester-interchange catalyst may be used in addition to the antimony compound.  In examples: (1)-(2) Bis - hydroxyethyl terephthalate is melted under deoxidized nitrogen and antimony trifluoride or antimony acetate is added with agitation.  Glycol distills off.  At 245 DEG  C., pressure is reduced at such a rate that it reaches 1 mm. at 270-275 DEG  C. Reaction is then continued at 275-285 DEG  C. at less than 1 mm. pressure.  (3) Dimethyl terephthalate and ethylene glycol are melted under deoxidized nitrogen and calcium acetate and antimony trichloride dissolved in ethylene glycol added.  After esterinterchange at atmospheric temperature, titanium dioxide is added and polycondensation effected as in example (1).  (4)-(10) and (13)-(17) As in example (3) but using the following catalysts: (4) calcium acetate and antimony trichloride; (5)-(6) zinc acetate and potassium pyroantimonate; (7) zinc acetate and antimony trifluoride, (8) zinc acetate and antimony acetate; (9) zinc antimonate; (10) zinc acetate and antimony sodium fluoride; (13)-(14) calcium acetate and antimony trioxide; (15) zinc acetate and antimony trioxide; (16) manganous acetate and antimony trioxide; (17) calcium acetate and antimony trioxide.  In examples (5)-(10) and (16) no titanium dioxide was added.
Patent GB-228369-A (GB)
Title: Improvements in pleating machines
IPC: D06J1/04
Filed: 1924-03-04
Abstract: 228,369. Odle, 0., Odle, L. E., and Muse, K. H. March 4. 1924. Pleating.-In a pleating-machine of the kind comprising intemeshing ribbed rollers 31, 51 of which the upper roller 31 is journaled in vertically-adjustable bearings 16, 17 and the lower roller 51 is adapted to be heated, the roller 31 is driven from a motor 73 by a belt 70, and the roller 51 is rotatable upon a fixed hollow spindle 41, Fig. 7, which contains an insulating casing 55 in which is mounted a electrical heating coil 59. The bearings 16, 17 are adjustable by handwheels 29, 30 and are provided with ball-bearings and lubricating passages. The spindle 41 is mounted by means of brackets 42 and a casting 45 having a squared boss 46. Lubricating passages 50 are provided in the roller 51. The casing 55 contains a block 61 to carry the terminals of the coil 59 and is closed at its end by a cap 66. A rheostat 67 may be incorporated in the heating circuit. A work-feeding table is provided with an adjustable guide, and a receiving table is arranged at a lower level than the feeding table.
Patent GB-1360976-A (GB)
Title: Catalytic process for treating exhaust gases
IPC: B01D53/94
Filed: 1971-02-26
Abstract: 1360976 Purifying I.C. engine exhaust gas IMPERIAL CHEMICAL INDUSTRIES Ltd 30 Sept 1971 [14 Oct 1970 26 Feb 1971 (2)] 48825/70 and 5545/71 5546/71 Heading F1B A process of treating an I.C. engine exhaust gas to decrease its nitrogen oxide content comprises passing the gas over a high temperature steam reforming catalyst comprising nickel or cobalt or a platinum group metal and a refractory oxidic catalyst support material under net reducing conditions at a temperature of 500‹ C, the conditions of temperature, catalytic activity and space velocity being so chosen that at least 70% of the nitrogen oxides are connected but at most 20% thereof is converted to ammonia, the process may have a start-up phase and a running phase, the start-up phase being operated prior to the running phase under oxidizing conditions with added air in the presence of the high temperature steam reforming catalyst. This added air may be fed to the second reactor or upstream thereof or between the reactors during normal running. The . process may be followed by a subsequent stage of shift reaction oxidation or methanisation. The oxidation stage catalyst is perferably a previous metal from group VIII of the heriodic table or copper or its oxides. Many examples are given in the specification of suitable catalyst supports. The apparatus for carrying the process into effect comprises a first reactor provided with the reactor downstream thereof for the oxidation, "shift" or methanation catalyst. Means are provided to feed air into either the first or second reactor. Alteration of the air feed may be responsive to temperature or a time switch. A branch conduit may be provided to recycle from 4% to 12% of exhaust gas to the engine inlet. Non-return valves at the outlet of the exhaust system and just downstream of the catalyst bed may be provided to prevent admission of air when exhaust gas flow has ceased. The invention is appliable to reciprocating and rotary piston engines and to gas turbines which may use gaseous or liquid fuel.
Patent GB-164089-A (GB)
Title: Improvements in or relating to motor scooters
IPC: B62K11/04
Filed: 1920-02-24
Abstract: 164,089. Whitfield, S. L., and Marshall, S. C. Feb. 24, 1920. Tubular constructions. - In motor-scooters, motor-cycles, &c. having a frame formed with two tubular members c extending rearwards from the lower end of the steering-head a, a straight strut f is used to connect the top of the head with one of the cross-stays e between the tubular members, and is arranged to pass through a platform supported by flanged plates f<1> which are braced by struts h and secured to the tubular members. The flanged plates may be connected by a bottom plate to form a tool box, part of the platform as k being hinged at m or otherwise arranged to constitute a lid or, cover to the box. As shown, the seat is mounted on a four-post frame o. In a modification, the front portion of the platform is fixed and the main portion is hinged at the front to serve as a cover to a toolbox, which is formed by flanged or channelled side plates, a bottom, and flanged or channelled cross-braces in one with, or secured to, the bottom; the seat is carried by two longitudinal horizontal stays connecting the upper ends of front and rear substantially vertical members, the rear-wheel axle is mounted in brackets on the rear members, and the engine and gear-box are supported by upper and lower horizontal stays secured to these front and rear members.
Patent GB-1123522-A (GB)
Title: Improvements in or relating to sealing structures
IPC: F16J15/43
Filed: 1967-02-06
Abstract: 1,123,522. Seals. HOESCH A.G. 6 Feb., 1967 [5 March, 1966], No. 5641/67. Heading F2B. A sealing arrangement for a rod 1 of a shock absorber comprises a bush 4 mounted in a wall 2, the bush and rod being wholly or partly made of an anti-wetting material having fluidrepelling properties (e.g. P.T.F.E. or polytetrafluorochloroethylene) and being provided with a microscopic clearance over at least part of their common length. As shown, the bush is provided with a tapered bore and is arranged so that the greatest contact pressure occurs at the end position 6. Pressurized liquid 3 passes through a passageway 7b in a retainer member 7 to form a meniscus 9 which resists the passage of liquid tending to pass through the seal. In a modification, Fig. 2 (not shown), the bush (4<SP>1</SP>) is compressed towards the piston by a rubber sheath (10) which is inserted in a tapering aperture (2c) surrounding the bush so that the greatest contact pressure occurs at the end position (6).
Patent GB-252770-A (GB)
Title: Improvements in or relating to electrical resistances
IPC: H02H3/16
Filed: 1925-03-02
Abstract: 252,770. Reyrolle & Co., Ltd., A., and Clothier, H. W. March 2, 1925. Cut-out arrangements.-The neutral point of a multiphase electrical system is connected to earth through a resistance so constructed that in the event of current leaking through it on account of a fault in the system the resistance gradually and progressively diminishes until the current attains strength sufficient to operate a cut-out device. In one form the resistance consists of liquid A in a tank B constituting one electrode, the other being formed as a float D. When a current passes the liquid evaporates and the float D sinks, thus diminishing the resistance; in a modification the fall of the liquid level is produced by the pressure of the vapour generated driving the liquid out of the float chamber into a second chamber. In a further modification the float is forced down through the liquid by an electromagnet; in this case a granular resistance material may be substituted for the liquid.
Patent GB-1496586-A (GB)
Title: Security seals
IPC: B65D63/14
Filed: 1975-02-11
Abstract: 1496586 Seals WA DEUTSHER PTY Ltd 11 Feb 1975 [20 Dec 1974] 5670/75 Heading B6P The ends of a strap are received in a housing, wherein one end at least is held in a buckle, then the housing is deformed about the ends to form a seal which can be broken only by breaking the strap. Preferably the ends enter the housing together, and the strap is so constituted that it can be broken by twisting the housing.
Patent GB-1132543-A (GB)
Title: Slide projectors
IPC: G03B21/00
Filed: 1966-02-09
Abstract: 1,132,543. Optical slide projectors. VOIGTLANDER A.G. Feb.9, 1966 [Feb.9, 1965], No. 5682/66. Heading G2J. A magazine slide projector has an optical system comprising fixed mirrors 16, 17, objective lens 21, reflecting surface 18, apertured at 19, and pivotable and rotatable mirror 26, whereby a secondary light beam from projection lamp 12 is directed to a reading position outside the projector, an image of compartment numbering scale 20 on magazine 9 also being projected to said position. For use with magazines whose scale is inaccessible to this optical system, the embodiment of Fig. 5 (not shown) has a transparent numbered disc (47) which is rotationally indexed as each slide is changed by means of a spring pawl (55) on a spring- loaded slider (52) engaging toothed disc (51). Concave mirror (36) between condensers (34), (35) directs light through the disc (47) which is manually pre-set by knob (50) to correspond to the first projected slide. Slide numbers may be projected on to a corner of the projection screen instead of to a reading position.
Patent GB-1240096-A (GB)
Title: Means for use with a packing machine for infeeding or outfeeding workpieces
IPC: B65B11/28
Filed: 1970-02-06
Abstract: 1,240,096. Packaging; endless conveyers for articles and sheets. OTTO HANSEL G.m.b.H. 6 Feb., 1970 [7 Feb., 1969], No. 5690/70. Headings B8A and B8C. Means for use with a packaging machine for infeeding workpieces to and from working stations which in succession at predetermined intervals revolve in an endless curved path and which in the course of their path engage control means such that in the course of each complete revolution at least one wrapping operation is completed at each station by the consecutive performance of a plurality of part operations, includes the provision of a driven endless non- stretchable and flexible conveying means which has at least one entraining element for infeeding or outfeeding a workpiece and which is so guided by deflecting and guide means that in the region of the path of revolution of the wrapping stations, it moves along an arched path that conforms with the path of revolution, the speeds of travel of the conveying means and of the working station being so matched that in the region where a transfer takes place, the relative motion between the entraining element and the working station facing the same is appropriately equal to zero. As shown, in a machine having four wrapping stations of which three A, B, C are visible and in which each station comprises a folding shaft 1, folding elements 2, 3, 4 and an ejector 5 all mounted on a rotor (not shown), each station is associated with upper and lower push rods 17, 16 which are operated by cams 23, 22 respectively to enable an article 27 to be removed off its conveyer 33, station A, moved to station B, and carried to station C for wrapping and thereafter discharge on to a conveyer 32. A disc 28 prevents movement of the article beyond the line of the push rods before rod 17 descends at station B. Wrappers 30 are produced from a roll 36 by a slitting mechanism 39-44 and are entrained by grippers 48 carried on a conveyer element 45 which is driven by a coupling ring 52 to deposit a wrapper over the article. In another arrangement, Fig. 2 (not shown), for feeding and wrapping chocolate bars (60) in two wrappers (70), (71), one belt (61) driven by a coupling ring (65) is provided with pushers (63) which engage one bar at a time and convey it along a feed table (67) to a wrapping station A. The wrappers (70), (71) are delivered by a belt (72) having driven grippers (74) and by a belt (86) having grippers (88), the belt (72) being entrained by a coupling ring (76). In both arrangements the conveying means may be a chain or a perforated metal band.
Patent GB-794072-A (GB)
Title: Improvements in or relating to flexible driving couplings
Inventor: HOROVITZ MARCUS
IPC: F16D3/62
Filed: 1956-02-23
Abstract: 794,072. Universal joints. METALASTIK, Ltd. Nov. 8, 1956 [Feb. 23, 1956], No. 5709/56. Class 80 (2). In a universal joint drive is transmitted through the links 12 coupled to the driving and driven members 10, 11 by flexible joints. Each joint comprises a spherical inner member 15 mounted on a stud 17 and enveloped in a rubber or like material which is compressed between two or more circumferentially-spaced parts 17. The layer of rubber like material 16 may be bonded to the member 15 and/or the parts 17. The links 12 may be arranged to be all in tension or compression or some may be in tension and others in compression.
Patent GB-317805-A (GB)
Title: Improvements in and relating to stencil sheets for use in duplicating typewritten or manuscript documents, drawings and the like
IPC: B41N1/24
Filed: 1928-02-23
Abstract: 317,805. Waele, A. de. Feb. 23, 1928. Stencils.-In stencil-sheet coating-compositions of the kind comprising gelatinizing organic colloids dispersable in aqueous media, in association with water-insoluble and non-hygroscopic bodies as the sole or main tempering-agents, a water-insoluble soap is employed as the tempering-agent for the gelatinizing constituent. The soaps of ricinoleic acid are preferred as they have no deleterious effects on the rubber parts of a typewriter. A volatile base such as ammonia may be included in the composition to ensure the formation of a disperse system of the oil-in-water type while permitting by its evaporation the subsequent formation of a disperse system of the water-in-oil type. The composition may, for example, comprise an aqueous dispersion of gelatine and casein, ricinoleic acid, titanium white pigment, ammonium hydrate, and zinc ricinoleic acid soap.